Airline travelers walk by the new Erwin Pearl jewelry store at concourse A at the Indianapolis International Airport.

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? What they do: Design and manufacture fine and fashion jewelry. The company has more than 25 retail locations, including within 10 airports. The store features hand-painted French enamels, baroque freshwater pearls, sterling silver, 14k gold, and the company's Me Me Charms Collection for bracelets and other types of jewelry.